The wife and I have two new revolution 13's. I found a sail kit on craigs list for $100 and I bought new sail kit from my local dealer for 25% off. The new one has a plastic hook sewn into the sail where the rope ties on the sail. What is this hook for? Please forgive my ignorance. I am a novice.

The Hobie mainsheets come pre-knotted. You just loop it around the sail and the knot holds it furled -- no tying required. Simple, quick and effective. A lot of users don't know what the mainsheet knots are for. Thinking it's a mistake, they remove it.

I use a detachable mainsheet for quicker set-ups and take downs, so I replace it with a "tail" (pictured) to secure the sail.